{
    "tender_id": 1050241,
    "check": {
        "ok": true,
        "versions": 2,
        "broken_at": null
    },
    "formula": "content_hash = sha256(content); hash = sha256(prev_hash + \"\\n\" + tender_id + \"\\n\" + version + \"\\n\" + recorded_at + \"\\n\" + content_hash [+ \"\\n\" + actor, when the version has one])",
    "versions": [
        {
            "version": 1,
            "recorded_at": "2026-10-24T13:58:39Z",
            "content": "{\"cpv\": \"90919200\", \"url\": \"https://zamowienia-ulc.ezamawiajacy.pl/pn/zamowienia-ulc/demand/notice/public/236211/details\", \"buyer\": \"Urząd Lotnictwa Cywilnego\", \"title\": \"Usługa kompleksowego sprzątania pomieszczeń w siedzibie i delegaturach oraz jednostkach terenowych Urzędu Lotnictwa Cywilnego\", \"source\": \"zamowienia_ulc_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"236211\", \"deadline_at\": \"2026-11-03T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-09-30T20:35:00Z\", \"procedure_url\": \"https://zamowienia-ulc.ezamawiajacy.pl/pn/zamowienia-ulc/demand/notice/public/236211/details\"}",
            "content_hash": "1cd9c1898b39665fa75d05ed1cd170b37be59327762f3954773380a1f66a8e0f",
            "prev_hash": "0000000000000000000000000000000000000000000000000000000000000000",
            "hash": "4324f47bc311da1a9fb073351a122be7fcd34357401a00cd64d377ef2dae9de7",
            "actor": null,
            "seal": {
                "id": 1,
                "digest": "25686b149cfd327de10f8db2827c82e22b0d6a884d716cd11b36328364d6937d",
                "file": "https://tenderiq.pl/rejestr/pieczec-1.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-1.txt.ots",
                "bitcoin_block": 972985
            }
        },
        {
            "version": 2,
            "recorded_at": "2026-10-30T19:38:28Z",
            "content": "{\"cpv\": \"90919200\", \"url\": \"https://zamowienia-ulc.ezamawiajacy.pl/pn/zamowienia-ulc/demand/notice/public/236211/details\", \"buyer\": \"Urząd Lotnictwa Cywilnego\", \"title\": \"Usługa kompleksowego sprzątania pomieszczeń w siedzibie i delegaturach oraz jednostkach terenowych Urzędu Lotnictwa Cywilnego\", \"source\": \"zamowienia_ulc_ezamawiajacy\", \"status\": \"active\", \"cpv_more\": [], \"source_id\": \"236211\", \"deadline_at\": \"2026-11-05T11:00:00Z\", \"notice_type\": \"Ogloszenie o zamowieniu\", \"published_at\": \"2026-09-30T20:35:00Z\", \"procedure_url\": \"https://zamowienia-ulc.ezamawiajacy.pl/pn/zamowienia-ulc/demand/notice/public/236211/details\"}",
            "content_hash": "e543e2db642bf4bdc7b9c5dc09ee8d63eabe70eb5736589d2f7f75b173bf719e",
            "prev_hash": "4324f47bc311da1a9fb073351a122be7fcd34357401a00cd64d377ef2dae9de7",
            "hash": "e40eb037f5d5b3e6fc6fbfc9728873113834edca862b3f04e510d63eefe09677",
            "actor": null,
            "seal": {
                "id": 7,
                "digest": "a9f75e7ec6726860fada5c5807cac164b76cf44582f14a01cd7b4a36f579f813",
                "file": "https://tenderiq.pl/rejestr/pieczec-7.txt",
                "proof": "https://tenderiq.pl/rejestr/pieczec-7.txt.ots",
                "bitcoin_block": 973897
            }
        }
    ]
}